jno if you read your link it sounds like they do have different rules when the visit houses
// Bedfordshire Police took these onboard as advice, not as a fixed and rigid practice. The most current version of these covers Baha’i, Buddhism, Christianity, Hinduism, Islam, Jainism, Judaism, Sikhism and Zoroastrianism and is contained in an annex to the National Policing Improvement Agency publication “Working With Faith Communities”. //
I think you may find they do consult with some Muslim elders before raids take place in some areas.